Chip on Glass LCD Module 320×240

Model No. WO320240E

COG LCD Display
Graphic LCD
320 x 240 dots
IC: RA8835
+3.3V/+5V power supply
1/240 duty cycle
Interface : 6800/8080

Category: COG LCD

Description

WO320240E is a monochrome graphic LCD module made of 320×240 dot matrix format. This STN COG module is built-in with RA8835 controller IC; it supports 6800 and 8080 parallel interface, 1/240 driving duty. Furthermore, it is also built-in with negative voltage generator and temperature compensation available as optional.

WO320240E model supports 3.3V and 5V power supply voltage. This module can be operated at temperatures from -20°C to +70°C; its storage temperatures range from -30°C to +80°C. WO320240E is available in FSTN positive LCD and with White LED backlight; please contact us if you need different LCD type and LED combination. Please note WO320240E is the replacement of WO320240D since the original IC has been EOL.

Drawing

Data source ref: WO320240E-TFH-V#

Specifications

Interface Pin Function

Pin No.	Symbol	Level	Description
1	VSS		Ground
2	VDD		Power supply for Logic
3	VO	(Variable)	Operation voltage LCD driving
4	A0	H/L	H:Data L:Instruction
5	/WR	H	8080 family: Write signal, 6800 family: R/W signal
6	/RD	L	8080 family: Read signal, 6800 family: Enable clock
7-14	DB0-DB7	H/L	DB0 Data bus line
15	/CS	H/L	Chip Enable
16	/RES	H/L	Reset
17	VEE		Positive voltage output
18	SEL1	H/L	8080 OR 6800 Family Interface Select ; H:68xx , L:80xx
19	A		Power supply for B/L+
20	K		Power supply for B/L-

Mechanical Data

Item	Standard Value	Unit
Number of dots	320×240	－
Outline dimension	94.7 x 83.3 x 9.4 max	mm
View area	81.4 x 61.0	mm
Active area	76.785 x 57.11	mm
Dot size	0.223 x 0.225	mm
Dot pitch	0.238 x 0.24	mm
Duty	1/240
Backlight	LED
IC	RA8835
Interface	6800/8080 series

Absolute Maximum Ratings

Item	Symbol	Min	Typ	Max	Unit
Operating Temperature	T_OP	-20	－	+70	℃
Storage Temperature	T_ST	-30	－	+80	℃
Input Voltage	V_IN	-0.3	－	V_DD+0.3	V
Supply Voltage For Logic	V_DD-V_SS	-0.3	－	7.0	V
Supply Voltage For LCD	V_DD -V₀	0	－	32	V

Electrical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage For Logic	V_DD-V_SS	－	3.0	3.3	3.6	V
Supply Voltage For Logic	V_DD-V_SS	－	4.7	5.0	5.3	V
Supply Voltage For LCD	V_OP	Ta=-20℃ Ta=25℃ Ta=70℃	－ 22.7 －	－ 23.0 －	－ 23.3 －	V V V
Input High Volt.	V_IH	－	0.5V_DD	－	V_DD	V
Input Low Volt.	V_IL	－	V_SS	－	0.2V_DD	V
Output High Volt.	V_OH	－	V_DD-0.4	－	－	V
Output Low Volt.	V_OL	－	－	－	V_SS+0.4	V
Supply Current	I_DD	VDD=3.3V	－	75	107.5	mA
Supply Current	I_DD	VDD=5.0V	－	36	68.5	mA

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